Re: [802.19] Coexistence Metrics

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Some comments on the notes from Mariana:

It is not immediately clear how a network deployment treatment of coexistence will make any analysis more complete. Outage probability, in this case, is down to network planning and area coverage requirements. This is a statistic in its own right. How can the outage from, for example, coexistence time domain analysis and network deployment be separated?

Point 1: Why uniform .16 and variable (random) .11 positions? What does that have to do with outage probability? How is an “outage” detected? Admittance threshold based on some criteria?

Point 2: Again, how is an “outage” detected? Where does 2% come from? What does it mean when the 2% threshold is crossed? Network outage?

Point 3: Why care about the statistics of distance? It either works or it doesn’t?

Point 4: What’s a “fixed network?” Non-mobile access point/base station?

Any comments? Please let me know.

Paul.

From: Mariana Goldhamer [mailto:marianna.goldhammer@alvarion.com]
Sent: Thursday, September 06, 2007 3:16 PM
To: Shellhammer, Steve; stds-802-19@ieee.org; Adrian.P.Stephens@intel.com; aghasemi@crc.ca; bji@sta.samsung.com; bkraemer@ieee.org; dlubar@ieee.org; david.grandblaise@motorola.com; dickroy@alum.mit.edu; dougchan@cisco.com; eldad.perahia@intel.com; fm@octoscope.com; john.sydor@crc.ca; Kathy Sohrabi; Kenneth Stanwood; Naftali Chayat; Nat.Natarajan@motorola.com; Paul Piggin; Shlomo Malka; Shyamal.Ramachandran@motorola.com; wuxuyong@huawei.com; Ziv Nuss
Subject: RE: Coexistence Metrics

Hi Steve,

I've spoke with Alvarion's people doing deployment simulations and we agreed that the following should be added:

The outage probability for the elements of the 802.16 network, for the case that 802.16 network has uniformly spread element positions and the 802.11 network has variable element positions; the reason for fixing the 802.16 network elements is due to the higher "foot print" resulting from OFDMA sensitivities
The percentage of position instances for which the outage of each element is less than 2%
The statistics of the distance between any of the elements of 802.16 network and any of the elements of the 802.11 for those instances enjoying less than 2% outage
If required, we can change to have 802.11 as the fixed network.
The "outage" may be evaluated using C/(N+I) criteria for every element.

Mariana

From: Shellhammer, Steve [mailto:sshellha@qualcomm.com]
Sent: Thursday, September 06, 2007 8:48 AM
To: stds-802-19@ieee.org; Adrian.P.Stephens@intel.com; aghasemi@crc.ca; bji@sta.samsung.com; bkraemer@ieee.org; dlubar@ieee.org; david.grandblaise@motorola.com; dickroy@alum.mit.edu; dougchan@cisco.com; eldad.perahia@intel.com; fm@octoscope.com; john.sydor@crc.ca; ksohrabi@nextwave.com; KStanwood@cygnuscom.com; Mariana Goldhamer; Naftali Chayat; Nat.Natarajan@motorola.com; ppiggin@nextwave.com; Shellhammer, Steve; Shlomo Malka; Shyamal.Ramachandran@motorola.com; wuxuyong@huawei.com; Ziv Nuss
Subject: Coexistence Metrics

All,

Here is a first cut at a document on coexistence metrics for the 3650 MHz band. We can discuss it on the call and I will take suggestions on any additional coexistence metrics.

Ian, please post on the web.

Steve